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nata0808 [166]
3 years ago
12

An amusement park charges $27 for adult tickets (a) and $24 for children's tickets (c). Last Friday the amusement park sold 272

tickets and collected $7,137. Which of the following systems of equations is a correct representation of this data?
Chemistry
2 answers:
Vaselesa [24]3 years ago
7 0
Try using a calculator
Lapatulllka [165]3 years ago
4 0

Answer:

a+c=272

27a+24c=7,137

Explanation: Hope this helps!!!

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1. What two types of cells contain chloroplasts?
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plant cells and eukroyatic algae

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How does positive catalyst increase the rate of chemical reaction?​
KATRIN_1 [288]

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6 0
3 years ago
Suppose the gas resulting from the sublimation of 1.00 g carbon dioxide is collected over water at 25.0◦c into a 1.00 l containe
jeyben [28]

Answer:

0.55 atm

Explanation:

First of all, we need to calculate the number of moles corresponding to 1.00 g of carbon dioxide. This is given by

n=\frac{m}{M_m}

where

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Mm = 44.0 g/mol is the molar mass of the gas

Substituting,

n=\frac{1.00 g}{44.0 g/mol}=0.0227 mol

Now we can find the pressure of the gas by using the ideal gas law:

pV=nRT

where

p is the gas pressure

V = 1.00 L is the volume

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R = 0.082 L/(atm K mol) is the gas constant

T = 25.0 C + 273 = 298 K is the temperature of the gas

Solving the formula for p, we find

p=\frac{nRT}{V}=\frac{(0.0227 mol)(0.082 L/(atm K mol))(298 K)}{1.00 L}=0.55 atm

8 0
4 years ago
Use the periodic table to write the electron configuration for rubidium (Rb) in noble has notation
Alexxx [7]

Answer:

Rb: [Kr] 5s  

Step-by-step explanation:

Rb is element 37, the first element in Period 5.

It has one valence electron, so its valence electron configuration is 5s.

The noble gas configuration uses the symbol of the previous noble gas as a shortcut for the electron configurations of the inner electrons.

The preceding noble gas is Kr, so the electron configuration is Rb: [Kr] 5s.

4 0
3 years ago
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